Studied by 20 people
Looks like no one added any tags here yet for you.
Phyla of Helminths
Platyhelminthes, Nematoda, Acanthocephala
What is not regarded as helmniths?
Phylum Annelida
Platyhelminthes
Class Monogenea, Trematoda, Cestoda
Nemathelminthes
Order Ascaridida, Rhabditida, Enoplida, Spirudida, Strongylida
Acanthocephala
Class Archiacanthocephala, Palaeacanthocephala, Eoacantocephala
Has direct life cycle
Annelida
Has both direct and indirect life cycle
Platyhelminthes, Nemathelminthes
has indirect life cycle
Acanthocephala
Monoecious
Platyhelminthes and Annelida
Dioecious
Nemathelminthes, Acanthocephala
Anterior and Posterior ends of Acanthocephala
Praesoma and Metastome
Outer body layer of Platyhelminthes
Tegument
These parasites have a tegument with spines
Trematoda
These parasites have mictroriches on their tegument
Cestode
Body wall consists of the cuticle, hypodermis/epidermis and muscle layer
Nemathelminthes
Body wall consists of a thick cuticle often folded
Acanthocephala
Body wall consists of a cuticle with annulations
Annelida
These parasites do not have digestive tracts
Acanthocephala and Cestodes (in Platyhelminthes
Organs are embedded in a specialized CT known as the parenchyma
Platyhelminthes and Annelida
Excretory organs of flat worms
Flame Cells or solenocytes
The only family of Class Trematoda that are not hermaphrodites
Family Schistosomatidae
generally small ectoparasites of cold-blooded aquatic or amphibious vertebrates and occassionally aquatic invertebrates
Subclass Monogenea
Parasites of fishes, turtles, mollusks or crustaceans
Subclass Asphidogastrea
Class Trematoda subclass that affect terrestrial vertebrates
Subclass Digenea
Adhesive organ
haptor or opisthaptor
Monogenea larva
oncomiridium/onchomiracidium
Well developed haptor with a pair of anchors and 16 hooklets
Gyrodactylus
One pair of anchors and 14 marginal hooklets with 4 eyespots. Manily seen in gills of freshwater fishes
Dactylogyrus
Adults that are permanently fused in pairs
Diplozoon
short protrusions in tegument
microtubercles
Transverse grooves in Rugogaster hydrolagi
Rugae
Suckers located at the anterior-end of the flatworm
Distome
Suckers located at the posterior-end of the flatworm
Amphistome
Only oral suckers of flatworms (Notocotylus notocotylus) ventrally located
Monostome
Papillae found on the adult tegument that serve a tactile function
Eye spots
Reproduction of flatworms
Cross-fertilization more frequently than self-fertilization
Male copulatory organ
Cirrus
Receives the cirrus of other worms. Female reproductive organ
Laurer's canal
IH of flatworms
Snail
1st larva
Miracidium
2nd larva
Sporocyst
3rd larva
Redia
4th larva
Cercaria
5th larva
Metacercaria
Infective stage
Cercaria
Mode of infection of cercaria
Digestion or Skin penetration
Note 
Flashcard (46)